New Genus and Species of High-Altitude Flightless Diestotini from the West Indies (Coleoptera: Staphylinidae: Aleocharinae)

Aleomallus yaque Rainey and Ivie, new genus and species is described from high-elevation areas in the Dominican Republic and placed in the Aleocharinae tribe Diestotini. This placement is discussed with a review of the history of the tribe and related groups. A description with figures of diagnostic characters is provided. This discovery highlights the extent of undescribed Aleocharinae biodiversity in the mountains of the West Indies.